Alamo DSEB-D16 Common Problems, Standard Control Valve Operation, ON - OFF Switch Installation

"ON - OFF" Switch Installation

Wire Harness: (Standard Mechanical Valve)

1.Starter Safety Switch Schematic, Mechanical Cable Operated Valve Type, NOT correct for Optional Joystick (Electronic) Controls.

2.Figure 4 illustrates a common wire harness connection for A-Boom mowers with mechanical cable controls, If the Joystick Optional controls are used the Wiring will be different than shown.

3.Individual installations may vary and are dependent on the electrical and safety system designs of the tractor to which the mower is mounted.

4.Consult the specific mounting instructions to determine the correct wire routing for each specific unit.

Common Problems:

1.The tractor won’t start: The mower on/off switch, if left in the “on” position will not allow the tractor to restart. Be sure to push the switch into the “off” position and account for all the tractor safety interlocks to enable the tractor to start. Failure of the tractor starter safety lock system is normally attributed to a failure of the mower on/off switch. Check continuity at the switch. Check for loose connections.

2.Cutter motor won’t start: Normal causes of this type of malfunction include failure of the push/pull switch, failure of the solenoid coil, loose connections, loss of ground, or a blown fuse. If the mower won’t start, check continuity of the system with a test light to find an electrical problem. Problems may also exist in the cutter valve and other systems.

3.The problem may not be in the electrical system, but because there are so many connections that could be malfunctioning it is the best place to start checking. If the electrical connections are ok, go on to the Tractor connections and/or the Tractor components to check for the malfunction. Some times the service technician thinks the best way to eliminate the Mower electrical connection problem is to bypass them; this should never be done, eliminating the starter safety system is dangerous and hard on the Hydraulic System, The Hydraulic System will be trying to start at a low RPM which is not good.

Standard Control Valve Operation:

1.This Control valve is the Standard 4 Spool that is remote cable Controlled, The 28 ft model used a 5 Spool valve with the 5 Th. Spool operating the Boom Extension. THIS SECTION WILL NOT apply to the OPTIONAL ELECTRONIC JOYSTICK CONTROLS. This Section mostly shows the 4 Spool Valve, The 5 Spool Valve is mainly the same with the 5 Spool operating the Hydraulic Door option on the Rotary head or the Boom Extension Cylinder on the 28-ft Model. (See Figure 5 & 6)

A-Boom (JD 6615 / 7615 Asy Instruction Manual) 07/03

© 2003 Alamo Group Inc. Section 8 - 4